GRAY RUFFED GROUSE. 89 
various points on the Yukon, and feeds upon the spruce 
buds, which give a disagreeable flavor to the flesh. 
BONASA UMBELLUS UMBELLOIDES. 
Geographical Distribution.—Rocky Mountain Region from 
Colorado, through Western Dakota, Montana, Idaho, and Brit- 
ish Columbia to the Yukon in Alaska. 
Adult Male.—Upper parts, mostly gray, some chestnut and 
black markings upon the neck, upper back, and wings; pale gray 
spots upon rump, all the feathers vermiculated with black; neck 
tufts, black, with metallic green reflections; under parts, white 
and buff mixed, especially so upon the chest, crossed with brown 
bars, changing to black on the flanks; under tail-coverts, gray, 
mottled with black and tipped with white; tail, pure gray, nar- 
rowly barred and mottled with black, and a subterminal black 
band. Total length about 144 inches; wing, 7}; tail 6. 
Adult Female resembles the male, and is without neck tufts. 
